Max Lüscher became known worldwide through the development of his color test. Less well-known are the theoretical considerations that led to the Lüscher diagnostics that have existed for 80 years. The following pages would like to give you an idea of what moved Max Lüscher to develop a non-verbal test using special test colors.
However, the test is only one — albeit significant — aspect of his work. What preoccupied him throughout his life was the Categorial Psycho-Logic underlying the test, the categories of which also underpin a value ethic. The philosophical, psychological and ethical implications of Categorial Psycho-Logic distinguish Max Lüscher's Personality Psychology as a valuable contribution to interpersonal understanding.